Methods and compositions for derepression of IAP-inhibited caspase
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United States of America Patent
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Jun 28, 2005
Grant Date -
Sep 25, 2003
app pub date -
Nov 21, 2002
filing date -
Nov 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides isolated agents having a core peptide selected from the group consisting of Core peptides 5 through 39 and 42 through 55, wherein the agent derepresses an IAP-inhibited caspase. Also provided is an isolated agent having a core structure selected from any of the structures shown in FIGS. 5, 9, 10, 14B, and 21-24 wherein said agent derepresses an IAP-inhibited caspase. The invention further provides a method of derepressing an IAP-inhibited caspase. The method consists of contacting an IAP-inhibited caspase with an effective amount of an agent to derepress an IAP-inhibited caspase, the agent having a core motif selected from the group consisting of a core peptide having a sequence set forth in any of Core peptides 4 through 39 and 42 through 55, and a core structure selected from the group consisting of TPI759, TPI882, TPI914 or TPI927. The methods of the invention also can be used for promoting apoptosis in a cell and for reducing the severity of a pathology characterized by reduced levels of apoptosis. Methods for identifying agents that derepress an IAP-inhibited caspase are also provided.
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